Imeokparia, E. G. (1982) Geochemistry and relationships to mineralization of granitic rocks from the Afu Younger Granite Complex, Central Nigeria. Geological Magazine, 119 (1) 39-56 doi:10.1017/s0016756800025644
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Geochemistry and relationships to mineralization of granitic rocks from the Afu Younger Granite Complex, Central Nigeria | ||
| Journal | Geological Magazine | ||
| Authors | Imeokparia, E. G. | Author | |
| Year | 1982 (January) | Volume | 119 |
| Issue | 1 | ||
| Publisher | Cambridge University Press (CUP) | ||
| DOI | doi:10.1017/s0016756800025644Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 252029 | Long-form Identifier | mindat:1:5:252029:6 |
| GUID | 0 | ||
| Full Reference | Imeokparia, E. G. (1982) Geochemistry and relationships to mineralization of granitic rocks from the Afu Younger Granite Complex, Central Nigeria. Geological Magazine, 119 (1) 39-56 doi:10.1017/s0016756800025644 | ||
| Plain Text | Imeokparia, E. G. (1982) Geochemistry and relationships to mineralization of granitic rocks from the Afu Younger Granite Complex, Central Nigeria. Geological Magazine, 119 (1) 39-56 doi:10.1017/s0016756800025644 | ||
| In | (1982, January) Geological Magazine Vol. 119 (1) Cambridge University Press (CUP) | ||
| Abstract/Notes | SummaryGeochemical analyses of fresh bedrock samples indicate that the Afu biotite granites are characterized by enhanced values of a suite of trace elements, including Sn, Nb, W, Zn, Rb, Li, F th, Y and depleted in Ba Sr, and Mn. These geochemical data are also examined by R-mode factor analysis with the primary objective of isolating the significant factors accounting for the sample composition as derived from mineralization, alteration and lithology.The Orthogonal varimax solution yields a five-factor model that accounts for 76% of the total data variance. Factors 1 (Nb, Rb, Li F) and 3 (Sn, W) can be attributed to the effect of mineralization and postmagmatic alteration; while Factor 2 (Mn, Sr, Ba Zr) is lithological, associated with barren rocks, unaffected by metasomatism. Factor 4 (Th, Y, Ga) and Factor 5 (Pb and Zn) are also associated with prominent mineralization. Thus the mineralized granites are characterized by high concentrations of Sn, Nb, W, Zn, Rb, Li F, Th, Y and Pb but ore formation is considered a product of postmagmatic processes. | ||
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